The Energy ESW-C10 is a midrange subwoofer delivering 400 watts of amplified power output. This model features Energy's Ribbed Elliptical Surround technology, intended to eliminate sound distortion and increase output and fidelity. The bass-reflex design and down-firing ports are meant to enhance these features. The ESW-C10 also boasts adjustable phase control and low-pass filter control.

In comparison to Energy's ESW-M and ESW-V line models, the ESW-C10 has lower amplified power output and generally fewer controls for fine-tuning the subwoofer's output.